<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.7.14/dist/vue.js"></script>
    <style>
        .one {
            width: 500px;
            height: 20px;
            background-color: skyblue;
            border-radius: 10px;
            margin-top: 20px;
        }
    </style>
</head>

<body>
    <div id="app">
        <div v-for="item in student" class="one">{{item}}</div>
    </div>
    <script src="./9.19.JS"></script>
</body>

</html>